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XL Laboratories QC Microbiologist Interview Questions and Answers

Updated 15 Jan 2022

XL Laboratories QC Microbiologist Interview Experiences

1 interview found

I applied via Referral and was interviewed in Dec 2021. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. How to increase own confidence
  • Ans. 

    Increasing confidence involves setting goals, practicing self-care, seeking feedback, and challenging negative thoughts.

    • Set achievable goals and celebrate small victories

    • Take care of yourself physically and mentally

    • Seek feedback from trusted mentors or colleagues

    • Challenge negative thoughts and replace them with positive affirmations

    • Practice and prepare thoroughly for tasks or presentations

    • Learn from past experiences an...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - knowledgemust importance

Interview questions from similar companies

I applied via Referral and was interviewed in Nov 2020. There were 4 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. The questions were asked about media, how it prepare, uses of media in microlab, kind of bacterias and their role in microlab, working method of hot air owen, describe some bacterias which we avoid, workin...
  • Q2. Describe some bacterias which is useful for human.
  • Ans. 

    Some bacteria are beneficial to humans and play important roles in various aspects of our lives.

    • Probiotic bacteria help maintain a healthy gut flora and aid in digestion.

    • Some bacteria are used in the production of food and beverages, such as yogurt and cheese.

    • Certain bacteria are involved in the production of antibiotics, which are essential for treating bacterial infections.

    • Bacteria like Escherichia coli (E. coli) are...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - The interview was a technical as well as stress test. Duration time probabily 40-50 minute. Most of the questions asked to me were related to my Bsc(Biotechnology) curriculum I.e. microbiology related topic. Luckily I was able to answer most of the questions correctly. It was my first first offocampus interview and I think I did pretty well for a fresher. You need to stay calm and should apply presence of mind. Please go through the job description thoroughly word-by-word and recheck your resume to ensure that you are a best-fit for the position.

I applied via Referral and was interviewed in Jul 2020. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Past experience, Accounting concepts, tested on communication

Interview Preparation Tips

Interview preparation tips for other job seekers - Good.

I applied via Naukri.com and was interviewed in Feb 2021. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Everything around the JD

Interview Preparation Tips

Interview preparation tips for other job seekers - Just stay honest

I applied via Walk-in and was interviewed before Aug 2021. There were 2 interview rounds.

Round 1 - Aptitude Test 

General aptitude questions, 15 in number.

Round 2 - One-on-one 

(2 Questions)

  • Q1. Explain about yourself
  • Q2. How do you know, you'll better suit the current opening in our org?

Interview Preparation Tips

Interview preparation tips for other job seekers - Be professional and communication expectations will be high.

I applied via Naukri.com and was interviewed in Jul 2022. There were 4 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Aptitude Test 

Basic Communications

Round 3 - Technical 

(1 Question)

  • Q1. Educational Knowledge
Round 4 - HR 

(1 Question)

  • Q1. Discussion about Company Norms

Interview Preparation Tips

Interview preparation tips for other job seekers - A Good atmosphere with plenty of routes are available.

I applied via Walk-in and was interviewed in Jan 2022. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Aptitude Test 

Warehouse activities

Interview Preparation Tips

Interview preparation tips for other job seekers - Improve my work in various activities and multiple level.

I applied via Campus Placement and was interviewed before Mar 2021. There was 1 interview round.

Round 1 - HR 

(5 Questions)

  • Q1. Share details of your previous job.
  • Q2. What are your strengths and weaknesses?
  • Q3. Tell me about yourself.
  • Q4. Why should we hire you
  • Q5. Share details of your previuosjob

Interview Preparation Tips

Interview preparation tips for other job seekers - Please chuse our good opurtunity

I applied via Referral and was interviewed before Dec 2019. There were 3 interview rounds.

Interview Questionnaire 

8 Questions

  • Q1. What is the Principle of Gram Staining?
  • Q2. Give 5 examples of Gram Positive Bacteria.
  • Q3. What is Sterilization?Types of Sterilization.
  • Ans. 

    Sterilization is the process of killing or removing all forms of microbial life from an object or environment.

    • Sterilization ensures the complete elimination of all microorganisms, including bacteria, viruses, fungi, and spores.

    • It is commonly used in healthcare settings, laboratories, and food processing industries to prevent the spread of infections.

    • Different methods of sterilization include heat (autoclaving, dry heat...

  • Answered by AI
  • Q4. Method of Counting microbial load?
  • Ans. 

    Microbial load can be counted using various methods including plate count, filtration, and most probable number (MPN) method.

    • Plate count method involves spreading a diluted sample on a solid agar medium and counting the colonies that grow after incubation.

    • Filtration method involves filtering a known volume of sample through a membrane filter and counting the colonies that grow on the filter after incubation.

    • MPN method ...

  • Answered by AI
  • Q5. What is MLT?
  • Q6. What is a Significance of microbiology in your Field of Interest?(pharma,food, fermentation etc)
  • Ans. 

    Microbiology is significant in the field of pharma, food, fermentation, etc. as it helps ensure product safety and quality.

    • Microbiology plays a crucial role in pharmaceutical industries by ensuring the safety and efficacy of drugs through testing for microbial contamination.

    • In the food industry, microbiology is important for monitoring and controlling the presence of harmful microorganisms that can cause foodborne illn...

  • Answered by AI
  • Q7. Different techniques of Staining.
  • Ans. 

    Staining techniques are used to enhance the visibility of microorganisms under a microscope.

    • Gram staining: Differentiates bacteria into Gram-positive and Gram-negative based on cell wall composition.

    • Acid-fast staining: Identifies acid-fast bacteria like Mycobacterium tuberculosis.

    • Endospore staining: Highlights endospores produced by certain bacteria.

    • Capsule staining: Visualizes the protective capsules surrounding some ...

  • Answered by AI
  • Q8. Significance of pH for growth of microorganism.
  • Ans. 

    pH is crucial for the growth of microorganisms as it affects enzyme activity, nutrient availability, and membrane integrity.

    • Microorganisms have specific pH ranges for optimal growth.

    • Extreme pH levels can denature enzymes and disrupt cellular processes.

    • Some microorganisms are acidophiles, thriving in acidic environments, while others are alkaliphiles, preferring alkaline conditions.

    • pH can influence the solubility and av...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - You should have basic knowledge about your field of Interest. All about Microbiology.

Skills evaluated in this interview

Interview Questionnaire 

3 Questions

  • Q1. HR said to me that you explain himself .
  • Q2. HR asked me that what is known about sterilization, BOD incubator, LAF, Culture media, fermenter, incubation period, pouring, sticking and bio fertilizer.
  • Q3. Tell me some bacteria, fungi and Alage that is use Bio fertilizer.
  • Ans. 

    Some bacteria, fungi, and algae used as biofertilizers include Rhizobium, Azotobacter, Trichoderma, and Chlorella.

    • Rhizobium is a bacteria that forms a symbiotic relationship with leguminous plants, fixing atmospheric nitrogen and providing it to the plants.

    • Azotobacter is a free-living bacteria that can fix atmospheric nitrogen and enhance plant growth.

    • Trichoderma is a fungus that acts as a biocontrol agent, suppressing...

  • Answered by AI

Interview Preparation Tips

Round: Resume Shortlist
Experience: My resume is based on microbiology, immunology, fermentation a d quality control.

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